refactor: extract anime feature into its domain slice

internal/features/anime/service.go

@@ -0,0 +1,53 @@
+package anime
+
+import (
+	"context"
+	"fmt"
+
+	"malago/internal/database"
+	"malago/internal/jikan"
+)
+
+type Service struct {
+	jikanClient *jikan.Client
+	db          database.Querier
+}
+
+func NewService(jikanClient *jikan.Client, db database.Querier) *Service {
+	return &Service{
+		jikanClient: jikanClient,
+		db:          db,
+	}
+}
+
+func (s *Service) Search(query string, page int) (jikan.SearchResult, error) {
+	return s.jikanClient.Search(query, page)
+}
+
+func (s *Service) GetTopAnime(page int) (jikan.TopAnimeResult, error) {
+	return s.jikanClient.GetTopAnime(page)
+}
+
+func (s *Service) GetAnimeDetails(ctx context.Context, id int, userID string) (jikan.Anime, string, error) {
+	anime, err := s.jikanClient.GetAnimeByID(id)
+	if err != nil {
+		return jikan.Anime{}, "", fmt.Errorf("failed to fetch anime details: %w", err)
+	}
+
+	currentStatus := ""
+	if userID != "" {
+		entry, err := s.db.GetWatchListEntry(ctx, database.GetWatchListEntryParams{
+			UserID:  userID,
+			AnimeID: int64(id),
+		})
+		if err == nil {
+			currentStatus = entry.Status
+		}
+	}
+
+	return anime, currentStatus, nil
+}
+
+func (s *Service) GetRelations(id int) []jikan.RelationEntry {
+	return s.jikanClient.GetFullRelations(id)
+}